Improvement in journal-box linings



- S. GWYNN. Journal-Box Linings. No\.140,775. Patente]uy15, 1873.

PATENT OFFICE.

STUART GWYNN, OF NEW YORK, N. Y., ASSIGNOR TO THE AMERICAN METALINE COMPANY, OF SAME PLACE.

IMPROVEMT IN JoURNAL-Box LININGS.

specification forming part of Letters Patent No. 140,775, dated July 15, 1873; application filed June 28, 1873.

T0 all whom it may concem:

Be it known that I, STUART GWYNN, of the city, County, and State of New York, have in- Vented an Improved Lining for J ournal-Boxes and other rubbing surfaces, of which the following is a specification, reference being had to the accompanying drawings forming part of the same:

On the 12th day of April, 1870, certain Letters Patent of the United States were issued to me, numbered from 101,862 to 101,869, inclusive, for certain compositions of matter denominated metaline, and for the process or method of making the same, as also theoffices it performs, to which reference is made. The invention herein intended to be described and clailned relates to a special mode of applying the said several kinds of metaline, or any of them, or their equivalent, to practical use; and consists in a combination of metaline with the material,*in the Inanner and for the purposes particularly described.

Fignre 1 is a Vertical sectional View of my invention, showing the first stage of its fabrication. Fig. 2 is a similar View of the same, showing the same after the application of pressure, and when thus completed and rendered ready for use. Fig. 3 is a top View in, perspective of the Same, showing the perforations in the metal sheet, as I prefer them made, with a sharp-pointed punch or similar instrument.

In the fabrication of my invention I take thin sheets of metal of any kind, but'preferably of Copper or brass, andperforate them with a series* of holes, as shown in Fig. 3. These holes may be cut or stamped out With a knife edged eutter or punch, but I prey fer to use, in making these perforations, a

sharp-poiuted punch or similar instrument, as the metal about the rim of the holes so made is, by this means, driven in or turned back by the punch and forms projections from the face of the sheets, as shown in Figs. 1 and 2. Up-

on a Sheet of this perforated metal I spread a layer or stratum of metaline in a finely-powdered state, and upon this again I place another sheet of the perforated metal, and then another layer or stratum of metaline, continuing the alternate layers of perforated metal and metaline, as shown in Fig. 1, until the requisite thickness of the mass is obtained. I

then subject theentire mass to severe pressure by means of presses or rollers, by which pressure the metaline is compacted and compressed into a solid form, and is forced into and through the perforations in the metal sheets, the metal sheets becoming reduced in thickness, and the projections about the rims of the perforations being somewhat flattened down and becoming firmly embedded in the metaline, and thus servingto securely grasp the metaline and hold it in shape and position, so that the composition or mass, as shown in Fig. 2, may be readily handled and cut into strips or other desired forms, to be used in linin g journal-boxes or other surfaces designed to be subjected to friction, the metaline being a material which, in its action, on such surfaces, obviates the necessity of the use of oil or any other extraneous lubricator.

III applying it to use the strips of thelining are placed, of course, with the edges or ends of the alternate layers of metaline and perforated metal sheets, faced upon the journals or other bearings.

In the drawings an enlarged size of this invention is shown, in order that the invention may be more readily perceived. A

What I Claim as a new manufacture is- The composition denominated metaline, iII- corporated with perforated metal sheets, substantially as and for the purpose specified.

STUART GWYNN.

Witnesses: p

A. LIVINGSTON MILLs, A. F. FITGH. 

